As of the latest Form 4 filed Jul 1, 2026.
What Compass Minerals International Inc insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Newest filing first — the 24 most recent filings for CMP.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-07-01 | 2026-06-30 | Reece Joseph E Director | AAward | +1.21K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-07-01 | 2026-06-30 | DEALY RICHARD P Director | AAward | +944.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-07-01 | 2026-06-30 | Safran David Director | AAward | +804.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-26 | 2026-06-24 | Nichols Benjamin S. Chief Commercial Officer | FTax | −747.00 | $28.66 | $21.4K | No | Form 4 ↗ |
| 2026-06-26 | 2026-06-24 | Nichols Benjamin S., Chief Commercial Officer | MExercise | +2.54K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-19 | 2026-05-18 | Nichols Benjamin S. Chief Commercial Officer | FTax | −195.00 | $28.97 | $5.65K | No | Form 4 ↗ |
| 2026-05-19 | 2026-05-18 | Nichols Benjamin S., Chief Commercial Officer | MExercise | +685.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-14 | 2026-05-13 | Nichols Benjamin S. Chief Commercial Officer | FTax | −247.00 | $30.21 | $7.46K | No | Form 4 ↗ |
| 2026-05-14 | 2026-05-13 | Nichols Benjamin S., Chief Commercial Officer | MExercise | +737.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-04-01 | 2026-03-31 | Safran David Director | AAward | +1.07K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-04-01 | 2026-03-31 | Reece Joseph E Director | AAward | +1.82K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-04-01 | 2026-03-31 | DEALY RICHARD P Director | AAward | +1.26K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | Joyce Gareth T Director | MExercise | +11.9K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | Miller Melissa M Director | MExercise | +11.9K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | Reece Joseph E Director | MExercise | +22.3K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | WALKER LORI A Director | MExercise | +11.9K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | DEALY RICHARD P Director | MExercise | +11.9K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-04 | 2026-03-03 | Merrin Patrick James Chief Operations Officer | FTax | −5.00K | $24.68 | $123K | No | Form 4 ↗ |
| 2026-03-04 | 2026-03-03 | Merrin Patrick James, Chief Operations Officer | MExercise | +18.5K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-01-29 | 2026-01-28 | Fjellman Peter Chief Financial Officer | FTax | −2.72K | $25.90 | $70.4K | No | Form 4 ↗ |
| 2026-01-29 | 2026-01-28 | Fjellman Peter, Chief Financial Officer | MExercise | +8.32K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-01-29 | 2025-12-31 | Safran David Director | AAward | +181.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-01-29 | 2025-12-31 | Roberts Mark Lawrence Director | AAward | +196.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-01-26 | 2025-12-31 | Merle Denise M Director | AAward | +220.00 | $0.00 | $0.00 | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also CMP’s full analysis or the market-wide insider trading feed. The tabs above jump to CMP’s other SEC data.
Source: SEC Form 4 filings for CMP, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
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